package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.Result;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiImplicitParam;
import io.swagger.annotations.ApiImplicitParams;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@RestController
@RequestMapping("/setmeal")
@Slf4j
@Api(tags = "套餐相关接口")//swagger接口文档
public class SetmealController {

    @Autowired
    private SetmealService setmealService;
    @Autowired
    private CategoryService categoryService;

    /**
     * 新增套餐
     * @param setmealDto
     * @return Result.success("新增套餐成功");
     */
    @CacheEvict(value = "setmealCache",allEntries = true)
    @PostMapping
    @ApiOperation("新增套餐接口")//接口文档说明
    public Result<String> save(@RequestBody SetmealDto setmealDto){
        log.info("setmealDto:{}",setmealDto);

        setmealService.saveWithDish(setmealDto);

        return Result.success("新增套餐成功");
    }

    /**
     * 套餐分页查询
     * @param page
     * @param pageSize
     * @param name
     * @return Result.success(dtoPage);
     */
    @GetMapping("/page")
    @ApiOperation("套餐分页查询接口")
    @ApiImplicitParams({
            @ApiImplicitParam(name = "page",value = "页码",required = true),
            @ApiImplicitParam(name = "pageSize",value = "每页记录数",required = true),
            @ApiImplicitParam(name = "name",value = "套餐名称",required = false)
    })
    public Result<Page> page(int page,int pageSize,String name){
        //分页构造器对象
        Page<Setmeal> pageInfo = new Page<>(page,pageSize);
        Page<SetmealDto> dtoPage = new Page<>();


        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        //添加查询条件
        queryWrapper.like(name != null,Setmeal::getName,name);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        setmealService.page(pageInfo,queryWrapper);

        //对象拷贝
        BeanUtils.copyProperties(pageInfo,dtoPage,"records");
        List<Setmeal> records = pageInfo.getRecords();

        List<SetmealDto> list = records.stream().map((item) -> {
            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item, setmealDto);

            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);

            if (category != null) {
                String categoryName = category.getName();
                setmealDto.setCategoryName(categoryName);
            }
            return setmealDto;
        }).collect(Collectors.toList());

        dtoPage.setRecords(list);
        return Result.success(dtoPage);
    }

    /**
     * 删除套餐 对应的套餐和菜品的关系也要删除
     * allEntries:表示删除setmealCache下的所有缓存数据
     * @param ids
     * @return Result.success("套餐删除成功");
     */
    @CacheEvict(value = "setmealCache",allEntries = true)
    @DeleteMapping
    public Result<String> delete(@RequestParam List<String> ids){

        setmealService.removeWithDish(ids);

        return Result.success("套餐删除成功");
    }

    /**
     * 修改套餐售卖状态
     * @param status
     * @param ids
     * @return
     */
    @PostMapping("/status/{status}")
    public Result<String> updateStatus(@PathVariable Integer status,@RequestParam List<String> ids){

        setmealService.updateStatus(status,ids);

        return Result.success("套餐状态修改成功");
    }

    /**
     * 根据条件查询套餐数据，在首页点击套餐时显示
     * @param setmeal
     * @return Result.success(list);
     */
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId + '_' + #setmeal.status")
    @GetMapping("/list")
    public Result<List<Setmeal>> list(Setmeal setmeal){
        LambdaQueryWrapper<Setmeal> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(setmeal.getCategoryId() != null,Setmeal::getCategoryId,setmeal.getCategoryId());
        queryWrapper.eq(setmeal.getStatus() != null,Setmeal::getStatus,1);
        queryWrapper.orderByDesc(Setmeal::getUpdateTime);

        List<Setmeal> list = setmealService.list(queryWrapper);

        return Result.success(list);
    }

}
